Hair clipper



J. A. HANLEY HAIR CLIPPER March 28', '1939.

Filed April 5, 1957 m J ,4 W y. J/mm 9 0 W mm a am j m y m f J m j 74 m3 mm i .M NM1 w .l m 9 w i 30 5 1 Hin f3 f 4 D: all@ 3 'ai I z l I W, uHUII ff. .HIJ Dunllnu. T L W -||L d 4 M JHI M u 1,5 y v. .I w 3% www. .3F l INVENTOR John A.Harz@ BY w ATTORNEYS Patented Mar. 2S, 1939 PATENTOFFICE HAIR CLIPPER John A. Hanley, Noroton, Conn., assigner toClipshave Inc., Port Chester, N. Y., a corporation of New YorkApplication April 5, 1937 Serial No. A134,986

19 Claims.

My present invention relates to hair clippingv apparatus and is moreespecially concerned with apparatus of the above type for use as a razorin clipping hair stubble, although it is useful also for shearing longerhair. The invention constitutes an improvement on my prior applicationsSerial No. 739,432 filed August 11, 1934 on which Patent No. 2,077,367was granted on April 13, 1937 and Serial No. 5319, led February 7, 1935on which Patent No. 2,102,529 was granted on December 14, 1937 andaccomplishes all of the fundamental objects of said 'prior applications.

Among other objects of the invention are to provide a clipping head fora device of the above type, easily applied by resort to a single thrustfor cooperative relation with respect to the carrying handle and themotor thereof, and without the need for auxiliary 'latching plates ormounting screws that might exert distorting stresses upon the clippinginstrumentalities, and inherently. anording protection to the useragainst the possibility of abrasion.

A further object -is to provide a clipping head of the above type inwhich the pressure exerted in use is localized with greatereffectiveness along the region at which the clipping actually occurs,

lwithout likelihoodv oi applying frictional loadover a wider area.

In thel accompanying drawing in which is shown one of various possibleembodiments of the several features of the invention:

Fig. 1 is a plan view of the clipping head with parts broken away toshow the inner plate,

Fig. 2 is a fragmentary side elevation of the mounted clipping head,

. Fig. 3 is a transverse sectional view taken along line 3 3 of Flg. 1,

Fig. 4 is a transverse sectional view on a greatly enlarged scale takenon line 4--4 of Fig. l,

Fig. 5 is afragmentary view on a larger scale of a detail of the outeror sheathing plate prio to lnturning the latter, and

Fig. 6 is a cross sectional view taken on line 6-6 of Fig. 4.-

Referring now to the drawing, there is shown Athe general outline of adesirable form of insulating handle I0, which jserves as a casing tovhouse a suitable electric motor for oscillating thel operating lever II, the extremity I2 of which protrudes through a corresponding port i3in`the reduced forward endoi the casing. 'I'he motory 1934, although anyother suitable motor may be employed. l v. l

The clipping head, in common with that of my prior Patent No. 2,102,529includes an outer shear plate i4 having flanges l5 turned under the ser-5 rated or toothed edges I6 of the inner plate I1 and sheathing thelatter and has resilient latch means for mounting the assembly to thecasing with said inturned flanges held against the casing end i0. Incommon with said earlier case 10 the serrations on the inner platepresent shearing faces and the gaps between said serrations affordwidened hair shedding gaps at the area below the shearing conformationand the outer or xed plate is slotted to present shearing con- 15formations and shedding ports. Also in common with said earlierapplication the two plates are preferably of stainless' steel, themoving or inner plate being preferably of stock: of .015" to .020" inthickness and the outer plates may be 20 of resilient steel stock offrom .008" to .010" in thickness.

The inner shear plate is preferably undercut, that is, the under ornon-shearing area of the plate is of smaller width than the outer orshear- 25 ing face thereof, the edges being beveled as at I8, theforward ends of the teeth I6 being relatively sharp. 'I'he lateral wallsof each tooth of the inner plate converge from the outer to the innerface thereof as appears at I9 in Fig. 6, to k30 aiord a lateral flare ofthe interdental spaces from the clipping to the shedding face thereof,Aand are longitudinally undercut at the troughs as at 20 (Fig. 4).

The slots in the fixed or outer shear plate Il, 35 as best shown in Fig.5, are spindle-shaped, being preferably formed by means of formedmilling cutters (not shown) to afford openings 2i oi.|` length and Widthconsiderably less at the inner f face than the corresponding openings atthe out- 40 er face, the walls of the slots shown at 22` extendingthrough the thickness of the plate. The blank shown in Fig. 5 hasinturned lateral flanges l5 extending about the beveled margins of theinner plate to afford clearance as at 23 45 with respect to the pointsof teeth I6 and clearf ance as at 24 with respect to the entire area ofthe beveled edge i8, the inturned flange being curved as at 25 for thatpurpose andbeing reversely curved therebeyond as at 26 for resilient 50engagement as at 21 with the under face of the inner. plate; The foldedge 28 of the outer plate is nearerthe inner than the outer ends of theslots or notches so that as best shown in Fig. 4, the inturned lportionsof slots 22 which extend 55 transversely of the inturned anges I5 of theouter plate extend substantially the full width of the beveled edges I8of the inner plate and afford hair shedding gaps exposing the entirelength of the undercut interclental spaces at the under face of theinner plate. The upper portions of slots 22 along the face of the plateI4 extend along the entire length of the shear teeth I6 on the upperface of the plate I'I.

As best shown in Fig. 4, the upper ends 22u of the slots 22 slope awayfrom the troughs of the interdental spaces of the inner plate l1 andthelower or inner ends of the slots 22 extend outward from the undercuttroughs 2d of the interdental spaces, as at 221,

By reference to Fig. 6, it will be seen that as a l consequence of theobliquely cut walls of teeth I6 and of slots 22, the lateral walls ofsaid slots converge from the outer to the inner face of the outer plateI4 and the lateral walls of each tooth I6 of the inner plate converge atI9 from the shearing to the shedding face thereof, while the slots 22along the inturned flanges I5 diverge laterally. i

Accordingly there are relatively wide entry ports for the hair at theupper face of plate I4, and the clippings pass through the surface ofcontact between the teeth I6 and slots 22 where the clipping occurs, tobe readily shed through the longitudinally and laterally diverginginterdental spaces of plate I4 and the similarly dverging walls of slots22, for prompt discharge lfrom the apparatus, without likelihood ofclogging.

As shown in the drawing, the body of the outer plate I4 between theinner ends 22 of the shearing slots thereof is convex or crowned as at30, away from the inner plate to localize at the margins the pressure tobe applied thereat in shearing. The metal 'of the main, expanse of theouter plate is preferably thinned by grinding at its clipping margins asat 3l, to afford enhanced resiliency thereat due to the resilientlyapplied pressure transmitted from the crowned or bowed region 30, foreffective snug engagement with the teeth I6 of the'inner plate I4.

According to the present invention the inner shear plate I1v hasrectangular tongues 33 struck out of the stock thereof, affordingopenings 34, saidtongues extending downward between the inner edges ofthe inturned flanges I5 of the outer plate and preferably in slidingengagement therewith as at 35. One of the functions of these tongues isto guide the reciprocating movement of the inner plate with respect tosaid flanges and therefore with respect to the outer plate I4 foreffective shearing coaction. The points of the teeth I6 of 'the innerVplate thus remain uniformly spaced from the folded edges 28 of theouter plate, as at 23. The tongues 33 extend into correspondingrectangular depressions 36 in the end of the handle casing, whichdepressions afford guideways therefor to assure rectilinearreciprocating movement of the inner plate I'I, in the operation of themotor, without any tendency to tilt or bind with respect to the outerplate.

For aiiixing the shearing head to the handleV casing, improved resilientlatch means are preferably provided. In the specific embodiment shown,the latch means comprise clip members 3'I each of generally stave shapeand of resilient metal, extending transversely across the respectiveends of the outer or fixed plate I4 each being amxed to said plate nearits center as at 38 and having its protruding ends 39 down-turned, and

curved inwardly to latch over corresponding narrow shoulders 4I) moldedat the corresponding parts of the casing;

The clipping edges of the shearing head extend laterally beyond thecasing but are preferably shielded by said casing, at their end edges.For that purpose, the casing has upstanding end ledges 4I substantiallyush with the plane of the shearing head interposed therebetween but thegaps between said head and said ledges are bridged by the central strapportion of the respective clips"3`I, to guard against the entry of hairthereinto.

As it is preferred to spot Weld the mounting clip to the outer plate andas, in view of the narrowness of such clip it might be dii'cult toaccomplish this effectively and yet have part of with the free edges ofthe respective extensionsA 42 so that spot welding as at 38 may beeffected midway between the lateral edges of the clips. Y

It is seen that the clipping head assembly is readily applied to thecarrying handle by simply superposing it thereover between ledges 4I andpermitting the clip ends 39 resiliently to snap over the correspondingshoulders 40 on the handle. The mounting can thus be effectedsubstantially by a single thrust, in which operation the inner plate iseffectively brought by its guide tongues 33 into effective position uponthe handle I0, with the operating lever end I2 extending into thecentral aperture 44 of plate I'I, and the strips 31 are brought intoeffective bridging relation over the protective ledges 4I on the handlecasing.

The inner plate. I'I is resiliently pressed by flanges I5 against theouter plate I4 for snug contact at the marginal or clipping region. Thehandle end takes the pressure applied in use by the engagement offlanges I5 therewith, and such pressure tends to enhance the snugness ofengagement at the shearing margins. The pressure applied in useisnecessarily localized at said marginal regions and at the tangentialflange portion 21, for effective operation with a minimum of load on themotor. area of the shedding instrumentalities there is no likelihood ofclogging of the shearing teeth with clippings and the device need not befrequently taken apart for cleaning. By reason of the central mountingof the resilient latching clipsy no distorting pressure is applied tothe clipping plates, the coaction of which at the superposed clippingteeth is in no way impaired by distortion or otherwise, as it might beif substantial By reason of the widening.

localized pressure were applied in such mounting. y

It will thus be seen that there is herein described apparatus in whichthe several features Having thus described my invention, what'I claim asnew and desire to secure by Letters Patent isz- 1. In a hair clippingapparatus of the type comprising an inner serrated plate and an outerplate Y .having an inturned flange sheathing the serrated plate andslotted to form shearingteeth coacting `with those of said serratedplate; the combination in which the shearing coaction between the twolplates is localized at the margins thereof, in which the sheathingflange is curved for resilient engagement with the under face of theinner plate and in which the outer face of the inner yplate is free fromengagement with the outer plate beyond the shearing margins of contact.

2. A hair clipping head comprising a toothed reciprocating inner platehaving a shearing face, an edge inwardly bevelled therefrom andpresenting hair shedding ports through the interdental spaces at thebevelled edge and at the under face thereof, a coacting fixed shearingplate having an inturned iiange enclosing the serrated edge and slottedfor clipping coaction with said teeth, said outer plate engaging theinner plate at said slotted regions, said inturned flange being curvedfor resilient engagement with the under face of said inner plate, saidplates being free from engagement with each other at areas other thanthe recited areas of contact. f

3. A hair clipping head comprising a generally rectangular inner platehaving shear teeth therethrough along its opposite edges, said plateproviding hair shedding interdental spaces at the under face thereof, anouter plate having 1nturned flanges enclosing the toothed edges of theinner plate, saidv flanges being slotted across 4the respective basesthereof, to afford shearing edges at the main area thereof coacting withthose of the inner plate and toafford hair shedding ports coacting withthe shedding spaces of said inner plate, said'fianges being curved forresilient engagement with the under face of the inner plate to hold saidinner plate resiliently against the outer or shearing face of the outerplate. 4. A hair clipping head comprising an inner plate having shearteeth therethrough along its opposite edges, said plate providing hairshedding interdental spaces at the under face thereof, an outer platehaving inturned flanges enclosing the toothed edges of the inner plate,said flanges being slotted across the respective bases thereof to aordshearing edges at the main area thereof coacting with those of the innerplate and to afford hair shedding ports coacting 'with the sheddingspaces of saidl inner plate, the under face of said inner platebeingresiliently engaged by said flanges and the outer face of saidinner plate being held against the outer or shearing face of the outerplate, the outer plate being bowed away from the inner plate through thewidth thereof between the shearing lengthsv of the slots therein.

5. A hair clipping head comprising a fiat generally rectangular innerplate having shear teeth therethrough along its opposite edges, saidplate providing hair shedding interdental spaces at the under facethereof, an outer plate having inturned flanges enclosing the toothededges of the inner plate, said flanges being slotted through therespective bases thereof to afford shearing edges at the main areathereof coacting with those of the inner plate and to afford hairshedding ports coacting with the shedding spaces of said inner plate,said inner plate being resiliently held by said flanges against theouter or shearing face of the outer plate, the inner plate having itsedges bevelled inward from the cutting to the shedding face thereof topresent at the outer face thereof relatively sharply pointed teethguarded by said inturned flanges.

6. A hair clipping head comprising a flat generally rectangular innerplate having shear teeth therethrough along its opposite edges, saidplate being undercut to provide hair shedding interdental spaces at theunderface thereof, an outer or fixed plate having inturned flangesenclosing the toothed edges of the inner plate, said flanges beingslotted across the respective bases thereof to afford shearing edges atthe main area thereof coacting with those of the inner plate and't'oafford hairshedding ports coacting with the shedding spaces of saidinner plate, said inner plate being resiliently held by said flangesagainst the outer or shearing face of the outer plate, the lateral edgesof the outer plate being bevelled at the portions thereof registeringwith said shedding ports. 4

'7. A hair clipping apparatus comprising a handle member, a shearinghead removably mounted thereon, said head comprising an inner shearplate having serrations therethrough at its edge and presenting at saidserrations a shearing face and a shedding face, said plate having mediantongues extending inward therefrom and lodged in guiding depressions ofcorresponding width in the forward end of said handle, an outer platehaving clipping conformations coacting with the shearing faces of saidserrations, and resilient latch means for attaching said outer plate tosaid handle with said inner plate guided by said tongues, forreciprocation in resilient contact with said outer plate.

8. A hair clipping head comprising an inner plate serrated at one edgethereof, said serrations extending through the thickness of said plateand aording shearing edges at one face thereof and hair shedding gaps atthe other face thereof, an outer shear plate superposed over and havinga flange embracing the serrated edge of the inner plate, said outerplate being slotted across the embracing edge thereof to aiord shearingedges coacting with those of said inner plate, and tongues struck inwardfrom the inner plate and protruding downward beyond the iiange 'of theouter plate for coaction with corresponding guides in a handle.

9. A. hair clipping head comprising an inner plate serrated at one edgethereof, said serrations extending through the thickness .of said plateing downward'beyond the flange of the outer plate-for coaction. withcorresponding guides in the handle, said tongues engaging the edge ofsaid inturned flange.

10. A hair clipping apparatus comprising aV motor enclosing handlecasing, a hair clipping head removably mounted on the end of saidcasing, said head comprising the'a'ssembly of an inner shear platehaving serrations along its opposite edges presenting shearing edges atone face thereof and, hair shedding gaps at the other face thereof andan outer plate having inturned flanges embracing said serrated edges,said outer plate being slotted to present shearing and sheddingconformations in registry with those of the inner plate, tongues struckinward from said inner plate and extending between the ilanges of theouter plate and in contact with the edges of the latter intocorresponding guideways at the end of the handle, operating meansextending from said motor through the end of said handle into acorresponding central aperture in the inner plate for reciprocating thelatter in a movement guided by the coaction of said instruck tongues andsaid handle end and resilient latch means releasably mounting said outerplate upon said handle casing.

11. 'I'he combination recited in claim 10 in which the latch meanscomprises downwardly extending tongues unitary with the outer plate andlatched over corresponding shoulders on the handle casing.

12. A hair clipping head assembly comprising inner and outer shearplates, the latter having lateral flanges embracing the edges of theformer, the inner plate having serrations and the outer plate havingslots to afford coacting shear edges and coacting shedding ports, theinner plate having protruding conformations unitary therewith toposition the latter and the outer plate having lateral resilient tonguesunitary therewith and protruding downward from near the ends thereof forlatching connection to a carrying handle.

13. A hair clipping head assembly comprising inner and outer shearplates, the latter having lateral flanges embracing the edges of theformer, the inner plate having serrations and the outer plate havingslots to afford coacting shear edges and coacting shedding ports, the,

inner plate having protruding conformations unitary therewith toposition the latter, the outer plate having resilient mounting clipsaffixed to the ends thereof, presenting lateral downwardly extendingres'ilient tongues for latching attachment to a handle.

14. A hair clipping head. assembly comprising inner and outer shearplates, the latter having lateral ilanges embracing the edges of theformer, the inner plate having serrations and the outer plate havingslots to aord coacting shear edges and coacting shedding ports. theinner plate having protruding conformations unitary therewith toposition the latter, and mounting clips extending transversely acrossthe ends of the outer plate, afiixed thereto near the middles thereofand presenting downwardly extending resilient tongues adapted to belatched to a handle.

15. A hair clipping head assembly comprising inner and outer shearplates, the latter having lateral ilanges embracing the edges of theformer, the inner plate having serrations and the outer plate havingslots to afford coacting shear edges and coacting shedding ports, theinner plate having protruding conformations unitary therewith toposition the latter and clip animos members comprising strips ofresilient metal extending transversely aoross the respective ends of theouter plate and permanently aiiixed at their middles centrally of therespective ends of the outer plate and presenting down-turned tonguesfor resilient latching engagement to a carrying handle.

16. I n a hair clipping head, the combination of an outer xed plate ofthin sheet metal stock presenting lateral shearing conformations, saidplate having a shortcentral extension at each end thereof beyond saidshearing conformations, mounting clip strips of resilient metalextending at their outer edges along said extensions, said strips beingspot welded at their respective middles midway of the widths of saidextensions, each of said strips presenting downturned resilient ends formounting on a. carrying handle.

17. A hair shearing apparatus comprising an insulating casing having anelectric motor therein with an operating reciprocatingI lever protrudingthrough a corresponding port in one end of said casing, a clipping headassembly removably mounted upon the end of said casing and presenting aninner plate and an outer plate, the latter having inturned iiangesextending about, the edges of the former, the inner plate being serratedand the outer plate being slotted at the inturned edges thereof to aordcoacting shearing edges and coacting shedding ports, said inner platehaving a central aperture fitted over the end of the operating leverend, the inner plate having down-struck tongues extending intocorresponding guideways in the end of the handle casing, the clippingconformations of said head extending beyond the lateral surface of thehandle casing, said casing having integral upstanding ledges confiningthe ends of the clipping assembly therebetween and means for resilientlylatching said assembly to said handle casing, said vmeans comprisingresilient mounting clip pieces extending across the ends of the outerplate, aiiixed thereto, and bridging the gaps between said ledges andsaid clipping head assembly, said clips having downwardly extendingresilient ends and said casing having shoulders over Which-said ends areresiliently latched.

18. The shearing apparatus as claimed in claim 17 in which the outerplate has narrow extensions interposed between the tops of therespective ledges and the mounting clips which are centrally spot weldedthereto.

19. A hair clipping head comprising an inner plate having shear teethalong its lateral edges and an outer plate having inturned flangesembracing said toothed edges and transversely slotted to aiord shearingedges coacting with those of said teeth, said flanges having paralleledges facing each other, and downwardly extending lugs rigid with saidinner plate extending between and engaging said iiange edges and servingto retain said inner plate in symmetrical relation with respect to saidouter plate with the points of the teeth uniformly spaced from the fold.edges of said outer plate.

JOHN A. HANLEY.

